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    <title>智能知识卡片生成器</title>
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                    <h1 class="text-4xl md:text-5xl font-bold mb-4 leading-tight">智能知识卡片生成器</h1>
                    <p class="text-xl mb-8 opacity-90">高效整理知识，一键生成精美卡片，助你快速记忆与复习！</p>
                    <div class="flex flex-wrap gap-4">
                        <button class="bg-white text-indigo-600 px-6 py-3 rounded-lg font-medium hover:bg-indigo-50 transition duration-300">立即体验</button>
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                    <img src="https://cdn.nlark.com/yuque/0/2025/png/21449790/1743853739637-d95f56fe-60c6-4418-adca-3b810435ea13.png" alt="知识卡片展示" class="w-full max-w-md rounded-xl shadow-2xl">
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    <!-- Main Content -->
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        <!-- Features Section -->
        <section class="mb-20">
            <h2 class="text-3xl font-bold text-center mb-12 text-gray-800">核心功能</h2>
            <div class="grid md:grid-cols-3 gap-8">
                <div class="bg-white rounded-xl p-8 shadow-md card-hover">
                    <div class="text-indigo-500 mb-4 text-4xl"><i class="fas fa-magic"></i></div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">智能生成</h3>
                    <p class="text-gray-600">AI辅助分析内容，自动提炼关键信息，生成结构清晰的知识卡片</p>
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                <div class="bg-white rounded-xl p-8 shadow-md card-hover">
                    <div class="text-indigo-500 mb-4 text-4xl"><i class="fas fa-paint-brush"></i></div>
                    <h3 class="text-xl font-bold mb-3 text-gray-800">精美设计</h3>
                    <p class="text-gray-600">数十种专业设计模板，满足不同场景需求，让知识更具视觉吸引力</p>
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                    <h3 class="text-xl font-bold mb-3 text-gray-800">便捷分享</h3>
                    <p class="text-gray-600">一键导出图片或PDF，轻松分享到社交平台或学习社区</p>
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            <h2 class="text-3xl font-bold text-center mb-12 text-gray-800">演示效果</h2>
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                    <img src="https://cdn.nlark.com/yuque/0/2025/png/21449790/1743853774179-1b93d9da-9aa8-46e0-87d1-14845e9ed4eb.png" alt="演示效果1" class="w-full h-auto">
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                    <img src="https://cdn.nlark.com/yuque/0/2025/png/21449790/1743855372194-66b54c81-8bf6-4ac2-b876-62e4fd172f9b.png" alt="演示效果2" class="w-full h-auto">
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                <div class="bg-white rounded-xl overflow-hidden shadow-lg">
                    <div class="p-8">
                        <h3 class="text-xl font-bold mb-4 text-gray-800">知识卡片示例</h3>
                        <div class="border-l-4 border-indigo-500 pl-4 mb-6">
                            <p class="text-gray-600 italic">"学习不是填满一桶水，而是点燃一把火。"</p>
                            <p class="text-gray-500 text-sm mt-1">—— 威廉·巴特勒·叶芝</p>
                        </div>
                        <ul class="space-y-2 text-gray-600">
                            <li class="flex items-start">
                                <span class="text-indigo-500 mr-2"><i class="fas fa-check-circle"></i></span>
                                <span>主动学习比被动输入更有效</span>
                            </li>
                            <li class="flex items-start">
                                <span class="text-indigo-500 mr-2"><i class="fas fa-check-circle"></i></span>
                                <span>激发内在动机是关键</span>
                            </li>
                            <li class="flex items-start">
                                <span class="text-indigo-500 mr-2"><i class="fas fa-check-circle"></i></span>
                                <span>知识需要与已有认知建立联系</span>
                            </li>
                        </ul>
                    </div>
                </div>
            </div>
        </section>

        <!-- Data Visualization -->
        <section class="mb-20">
            <h2 class="text-3xl font-bold text-center mb-12 text-gray-800">知识卡片创作流程</h2>
            <div class="bg-white rounded-xl p-6 shadow-lg">
                <div class="mermaid">
                    graph TD
                    A[输入文本内容] --> B[AI分析关键信息]
                    B --> C[提取核心概念]
                    C --> D[构建知识关系]
                    D --> E[选择设计模板]
                    E --> F[生成知识卡片]
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            <h2 class="text-3xl font-bold text-center mb-12 text-gray-800">用户评价</h2>
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                    <p class="text-gray-600 mb-6">"这是我用过最高效的学习工具，让我复习效率提升了至少3倍！"</p>
                    <div class="flex items-center">
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                            <img src="https://randomuser.me/api/portraits/women/65.jpg" alt="用户头像" class="w-full h-full object-cover">
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                            <h4 class="font-medium text-gray-800">张教授</h4>
                            <p class="text-gray-500 text-sm">北京大学</p>
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                    <p class="text-gray-600 mb-6">"卡片设计非常专业，让我的学习笔记从枯燥变得生动有趣。"</p>
                    <div class="flex items-center">
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                            <img src="https://randomuser.me/api/portraits/men/32.jpg" alt="用户头像" class="w-full h-full object-cover">
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                            <h4 class="font-medium text-gray-800">李同学</h4>
                            <p class="text-gray-500 text-sm">清华大学</p>
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                    <p class="text-gray-600 mb-6">"团队协作功能让我们研究小组的文献整理工作变得轻松高效。"</p>
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                            <h4 class="font-medium text-gray-800">王研究员</h4>
                            <p class="text-gray-500 text-sm">中国科学院</p>
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